FAQ・About "metric rate monitors"

When creating a host metric monitor, you can select the following four items to be monitored.

  • CPU %
  • Memory %
  • Swap %
  • Filesystem %

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These monitors fall under the category metric rate monitor and can be set to be monitored based on information of "metrics sent from mackerel-agent” (system metrics). For metrics in this category, thresholds are specified in "percentage" (with 100% as a whole).

Detailed specifications for the above four items are as follows.

  • CPU %
    • Regardless of the number of cores, the 100% - idle% percentage is specified as the threshold when the whole is 100%.
  • Memory %
    • The used percentage is specified as a threshold for total.
  • Swap %
    • The swap used percentage is specified as a threshold for swap total.
  • Filesystem %
    • The used percentage is specified as a threshold for size.
    • When metrics of multiple file systems are posted, the file system with the highest utilization rate and the thresholds are used for comparison.

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